Full metadata
Title
Compact S/X Dual-Band Coaxial-Fed CP Polarizer for Satellite Communications
Description
Satellite communications employs circular polarization (CP) to circumvent thewell-known phenomenon known as Faraday Rotation, where the ionosphere rotates the
horizontal and vertical polarization components resulting in signal degradation especially
at lower frequencies, i.e., VHF and L-band, and in tropical regions of the earth. Satellite circularly polarized antenna feed technology commonly employs bulkyand lossy 90-degree hybrid combiners to convert linear polarization to circular
polarization, which results in a higher noise figure for receive applications and a less
repeatable and more difficult design to tune and manufacture. This thesis aims at designing, modeling and simulating a prototype S/X dual bandCP feed/polarizer utilizing a technique known as the “Spread-Squeeze” polarizer, which
offers the advantages of compact size, ease of manufacture, and lower loss and noise
figure, relative to the current technology that often employs an external 3-dB hybrid
combiner. Ansys High Frequency Structure Simulator (HFSS), a commercial
electromagnetic modeling and simulation tool, is used for the simulations. Further, this thesis aims to characterize the performance of the dual feed hornwith respect to aperture efficiency, that is, the degree to which the feed horn illuminates
the parabolic reflector.
Date Created
2021
Contributors
- Cowan, Brad (Author)
- Aberle, James (Thesis advisor)
- Pan, George (Committee member)
- Trichopoulos, Georgios (Committee member)
- Arizona State University (Publisher)
Topical Subject
Resource Type
Extent
83 pages
Language
eng
Copyright Statement
In Copyright
Primary Member of
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.2.N.168415
Level of coding
minimal
Cataloging Standards
Note
Partial requirement for: M.S., Arizona State University, 2021
Field of study: Electrical Engineering
System Created
- 2022-08-22 03:11:55
System Modified
- 2022-08-22 03:12:17
- 2 years 2 months ago
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